Baby baron twin/ Baby Superbee


New member
Had a spare power pack for a quad lying around(JMT Mini 1806 2400KV with 12A speed controls with 3A bec) so we decided to put together a couple baby barons for the kids. My oldest daughter built one and we got it tuned and flying with a radiolink receiver and byme-a stabilizer.

After I maidened it and realized how sweet it flew I came to the conclusion that this would be a perfect machine for making a small, packable, high speed fpv hotrod out of.
So I gathered some materials.
A carbon fiber arrow saft for the spar.
A CRSF to Sbus board
Another radiolink byme-a stabilizer
And a few other electrical components.

First thing for me to figure out, was making sure I had enough real estate in and on the wing to get it done and I also did some dimension comparison between a bloody Baron and a superbee. Pretty close.
Also I definitely had enough room for the 5x4x3 HQ durable props I am planning on running.
So the first part to sort was the power pods. I changed them from an a fold to a b fold and added tabs of the same dimensions that the fuse has as well as 4° downthrust that the original baby baron has. Printed up some firewalls from petg.
Second part was the wing itself, had a little help from CAD here to lay out and get dimensions for the tab holes for the power pods which I transferred to the template I already had. Then I soldered up the ESCs and motors and used that to layout the holes in the bottom wing panel for the ESCs
After I cut the extra holes in the wing template I proceeded to build the wing pretty much to spec other than the extra holes and the use of a carbon fiber arrow shaft for the spar.
I ended up having to notch the sides of the servo hole in the bottom wing panel for the esc wires to fit through, it was too tight on the wires as well as causing the servo to tilt out of square in the hole.
The tail feathers where built to spec other than adding toothpick struts for the vertical stabilizer.
For the fuse I removed the c fold at the front and made it a paper only fold over, as well as not cutting the notches for it in the doublers. I will be printing a deck to go up inside the top of the fuse for additional rigidity as well as a solid place to mount the radio, byme-a and, fpv camera. The vtx will be mounted on top of the nose so it can get plenty of air. For starters I've got a small akk aio video system that I can rubber band to the top of the nose.
The receiver is a triple stack consisting of a happymodel ep1 elrs receiver
A matek crsf to sbus adapter and
A matek crsf to pwm adapter.

The wing is complete.



FT CAD Gremlin
Staff member
Umm...that thing is gonna tear a hole in the sky! I love it. Please share some flight video when you can.


New member
Umm...that thing is gonna tear a hole in the sky! I love it. Please share some flight video when you can.

So the baby superbee has been completed and I've flown somewhere around 10 650mah 2s packs through it. Thing ripps on 2s. 1/3 thr launches, round about 45mph cruise at 1/2 thr.
Tried an 850mah 3s and WOW was it quick for the 35 seconds before both esc's browned out (got some new ones coming), and that's when I figured out it's major flaw. Thing glides like a brick. Somewhere around a 1/1 glide ratio. Definitely going to have to shave some weight. About the only place for me to do that though is the servos. It's got 2 9G mg sevos that actually weight 14G because that's what I had laying around.
I've got 2 4.3G digitals coming.
Either way I don't think that will be enough.
Auw with the 650mah 2s is 273G
Auw with the 850mah 3s is 304.5G
Changing servos will save me around 19.3G
It barely balances neutral with the 650 2s as far forward as I can put it but the lighter servos along with their lighter guage leads should probably help with that issue but, I still need more wing area to improve the glide ratio. I'm planning to build a new wing that's 2" wider, I was thinking of putting the extra inch between the fuse and the power pod on each side, to give more prop clearance for the fuse and, reduce the chance for turbulence and airflow issues that I believe is occurring over the inbord section of the wing.
With all that being said, if I add an inch to each side of the wing, how much length do you think I should add to the fuse to keep it from ending up short coupled in pitch and yaw as well as maintain CG?
Pitch is already very touchy and with my throws mechanically set as low as I can get them (I can put one more hole in the surface control horn) the stabilizer wants to start pitch oscillations at full throttle on 2s power. Any advice would be greatly appreciated.

YouTube link to flight footage